碱性氧气转炉钢 basic oxygen steel

底吹氧气转炉炼钢法 quality basic oxygen process ; q bop process

氧气顶吹转炉炼钢 top-blown converter steelmaking ; oxygen top blown converter steelmaking ; top blown oxygen converter steelmaking

碱性氧气转炉炼钢法 basic oxygen converter process

氧气转炉炼钢法 oxygenconverterprocess

氧气顶吹转炉炼钢法 LDprocess ; Donawitzprocess

氧气转炉炼钢流程 Ore-Blast-BOF-Steelmaking ; OBBOFS

氧气顶吹制钢转炉 basic oxygen steel furnace